APA (7e ed.) Bronvermelding

Clark, C. (1951). The conditions of economic progress (2d ed. completely rewritten.). Macmillan.

Chicago (17e ed.) Bronvermelding

Clark, Colin. The Conditions of Economic Progress. 2d ed. completely rewritten. London: Macmillan, 1951.

MLA (9e ed.) Bronvermelding

Clark, Colin. The Conditions of Economic Progress. 2d ed. completely rewritten. Macmillan, 1951.

Let op: Deze citaties zijn niet altijd 100% accuraat.